METHODS: It was a randomized, double blind, double model, parallel controlled clinical trial.

方法：采用随机、双盲双模拟、平行对照方法。

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For the shortage of fuzzy controller, the double model controller was adopted, optimizing fuzzy controller through traditional PID controller.

针对模糊控制算法的不足，建立了双模控制器，用传统的PID算法优化模糊控制器。

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The theory and composing of ARBS based on the double model tracker were introduced. The key parameters of operating distance and angle speed precision were analysed.

介绍了双模跟踪的ARBS原理及系统组成，分析了其关键技术参数：作用距离、角速率精度。

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This is just that double dipping model being applied to the online world.

FORBES: AT&T Looking to Double-Dip on Mobile Data Charges

The service-orientated slate (as opposed to a gadget, which CEO Jeff Bezos claims nobody wants) comes with a bigger battery, a new processor and 1GB RAM -- double that of the 2011 model.

ENGADGET: Amazon unveils new Kindle Fire with doubled RAM, 44 percent better performance and $159 price

The electric drive produces 95 hp, more than double the power of the previous model's electric motor (47 hp).

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